Whenever Ascended Seer attacks, it gets +1/+0 until end of turn unless defending player pays {1}.

Xiv, Replisparked has all abilities of creature and planeswalker cards integrated onto them.
[+2]: Target player discards a card. Integrate up to two cards from graveyards.
[+1]: Xiv becomes a 5/5 artifact creature with vigilance and indestructible until end of turn.
[–4]: Integrate target permanent.

Integrate up to two target creatures with total toughness 6 or less.

Target creature gets +4/-2 until end of turn.

Flying
At the beginning of your end step, you may exile a card you own from outside the game. Put that card into your hand unless an opponent pays {2} and 2 life.

When Vision Herald enters, the first spell target opponent casts during their next turn costs an additional {1} and 1 life to cast.

Whenever another creature dies, you may integrate it.
Whenever a creature card is integrated onto Unmolded One, you may have it become a copy of that card until end of turn, except it has Unmolded One's abilities.

Whenever you cast a colorless spell, you may pay {C}. If you do, copy it. You may choose new targets for the copy.
Whenever a creature you control attacks, put a +1/+1 counter on it for each other creature you control with the same name as that creature.

Integrate target creature or creature spell with mana value 3 or less.

When Stratos Sentry enters, target opponent chooses a nontoken creature they control. You integrate that creature.
As long as a creature card with power 3 or less is integrated onto Stratos Sentry, it gets +1/+0 and has flying.

Counter target activated or triggered ability from a nonland source. If a creature's ability is countered this way, you may pay {1}{C}. If you do, exile that creature.

Hexproof from permanents

At the beginning of combat on your turn, you may have target Advisor you control get +2/-1 until end of turn.

Whenever Leyline Leecher attacks, you may pay {1}. If you do, integrate target card from a graveyard.
Leyline Leecher gets +1/+0 and has flying as long as an instant or sorcery card is integrated onto it.

Each player reveals their hand, then you choose a nonland card type. Each player discards all cards of the chosen type, then draws a card for each card they discarded this way.
Draw a card.

Enchant creature
Whenever enchanted creature deals or is dealt damage, exile it.

Choose a card name. Target permanent gains protection from the chosen name until end of turn. Scry 2.

Integrate target permanent spell.

Hivecaste Vukoroq gets +1/+2 as long as you control another creature named Hivecaste Vukoroq.

This spell costs {1} less to cast if it targets a spell you control and costs {1} less to cast if it targets a spell with mana value 3 or less.
Copy target spell. You may choose new targets for the copy.

Draw a card. If you control no creatures, create a 1/1 colorless Cyborg artifact creature token.

Exile the top four cards of your library. You may play them until you play a card not exiled this way.

Choose a color. Exile all permanents of the chosen color. Until the end of your next turn, if you would add {C}, instead add {C} and one mana of the chosen color.

Create a token that's a copy of target creature, except it's 3/3.

When Beguiling Stewards enters, if it's not a token, create a token that's a copy of it.
Beguiling Stewards has deathtouch as long as you control another creature named Beguiling Stewards.